CN103297385A - Method for achieving data roaming - Google Patents
Method for achieving data roaming Download PDFInfo
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- CN103297385A CN103297385A CN2012100440642A CN201210044064A CN103297385A CN 103297385 A CN103297385 A CN 103297385A CN 2012100440642 A CN2012100440642 A CN 2012100440642A CN 201210044064 A CN201210044064 A CN 201210044064A CN 103297385 A CN103297385 A CN 103297385A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0807—Network architectures or network communication protocols for network security for authentication of entities using tickets, e.g. Kerberos
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/33—User authentication using certificates
- G06F21/335—User authentication using certificates for accessing specific resources, e.g. using Kerberos tickets
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2151—Time stamp
Abstract
The invention belongs to the field of computer network communication, and provides a method and device for achieving data roaming. The method includes the steps that a client-side obtains a data roaming certificate which corresponds to user login information in a unique mode, the client-side sends a data roaming request with the data roaming certificate to a data roaming server, the data roaming server verifies whether the data roaming request is legal or not according to the data roaming certificate included in the data roaming request, and if the data roaming request is legal, roaming data transmission is conducted between the client-side and the data roaming server. Through the step of verifying legality of the user data roaming request before data communication is conducted between the client-side and the data roaming server, security isolation of user information can be achieved. In addition, a catalog type user network system structure is adopted by the data roaming server, and therefore expandability and universality of document positioning are guaranteed.
Description
Technical field
The invention belongs to computer network communication field, relate in particular to a kind of implementation method and device of general data roaming.
Background technology
Data roaming refers to upload the data in the webserver preserves, anywhere any operating data.These data can be text, audio-visual and data that other are comparatively safe, existing data roaming technology realized client can be on different equipment and network free synchronization and get access to up-to-date application data, the user need not to carry data storage device, can upgrade it in the data that other device ends are preserved at different device ends easily by data roaming, realize the purpose that data are shared.
Fig. 1 shows the structure chart of existing data roaming system model, comprise data roaming server and a plurality of client that is distributed in distinct device terminal and network, pass through network connection between the data roaming server and client side, here the data roaming server is mainly used in preserving the data of client upload and user data synchronization is gone to other client, the described client of uploading data is exactly the data producers, the client of described data sync is exactly the consumer of data, has formed a complete framework of uploading and downloading like this.Diagram is example with two clients, the user uploads to personal data in the data roaming server by the client 1 that is installed in device end 1, in the needs data sync, the personal data that the user preserves the data roaming server by the client 2 that is installed on the device end 2 are synchronized to client 2, further are saved on the device end 2.
But there is open defect in existing data roaming technology: existing data roaming model can't be realized the isolation of user data; after the user uploads to the data roaming server with its personal data; it is just can request msg synchronous that other user need not checking; the user can roam data with the individual who uses other users by hack like this, makes and can't well protect privacy of user.In addition, the versatility of available data roaming technology is bad, because roaming data format and the storage mode of each data roaming system storage are different, need be according to the different roaming system of actual conditions exploitation of roaming data, so relatively waste of manpower is exploited natural resources and server resource.
Summary of the invention
In view of the above problems, the invention provides a kind of implementation method of data roaming, being intended to solve the available data roaming technology can't safe user-isolated individual's roaming data message, technical problem that can not fine protection individual subscriber privacy.
The present invention is achieved in that a kind of implementation method of data roaming, and described method comprises the steps:
Client is obtained and the unique corresponding data roaming voucher of user login information;
Client sends the data roaming request that has the data roaming voucher to the data roaming server;
The data roaming server verifies according to the data roaming voucher that comprises in the data roaming request that receives whether described data roaming request is legal, if the data roaming request is legal, then roams transfer of data between described client and the data roaming server.
Further, described client is obtained and being implemented as follows of the unique corresponding data roaming voucher step of user login information:
Client login account management server also sends the roaming certificate application comprise user login information to the number of the account management server;
The number of the account management server verifies that according to the legitimacy of the roaming certificate application checking login user that receives qualified back is to the described roaming certificate application of data roaming server forwards;
The user login information that comprises in the data roaming server basis roaming certificate application that receives generates the data roaming voucher of unique correspondence, more described data roaming voucher is transmitted to client by the number of the account management server; And
Client receives the data roaming voucher that described number of the account management server is transmitted.
Another object of the present invention is to provide a kind of implement device of data roaming, this implement device comprises:
The voucher acquiring unit is used for client and obtains and the unique corresponding data roaming voucher of user login information;
The roaming request unit is used for client and sends the data roaming request that has the data roaming voucher to the data roaming server;
The credential verification unit, be used for the data roaming voucher that the data roaming server comprises according to the data roaming request that receives, verify whether described data roaming request is legal, if the data roaming request is legal, then roam transfer of data between described client and the data roaming server.
Further, described voucher acquiring unit comprises:
The application sending module sends the roaming certificate application that comprises user login information for client login account management server and to the number of the account management server;
The checking forwarding module is used for the number of the account management server according to the legitimacy of the roaming certificate application checking login user that receives, and verifies that qualified back is to the described roaming certificate application of data roaming server forwards;
The voucher generation module, the user login information that the roaming certificate application that receives for data roaming server basis comprises generates the data roaming voucher of unique correspondence, more described data roaming voucher is transmitted to client by the number of the account management server; And
The voucher acquisition module is used for client and receives the data roaming voucher that described number of the account management server is transmitted.
The invention has the beneficial effects as follows: the embodiment of the invention provides a kind of implementation method of data roaming, this method also need be through the verification step of user data roaming request legitimacy before client and data roaming server carry out data communication, because other users do not possess the data roaming voucher corresponding with previous user, can't be synchronized to previous user's roaming data, can realize like this that therefore the safety of user profile is isolated.
Another beneficial effect of the present invention is: the embodiment of the invention provides a kind of implement device of data roaming, this device has been introduced voucher acquiring unit and credential verification unit, client and data roaming server carry out also need verifying user data roaming request legitimacy before the data communication, because other users do not possess the data roaming voucher corresponding with previous user, can't be synchronized to previous user's roaming data, therefore can realize like this that the safety of user profile isolates, strengthen the fail safe that the user roams data.
Description of drawings
Fig. 1 is the structure chart of this existing data roaming system model;
Fig. 2 is the flow chart of the implementation method of the data roaming that provides of first embodiment of the invention;
Fig. 3 is the sequential interaction figure between the communication entity of the data roaming model that provides of second embodiment of the invention;
Fig. 4 is the data roaming server and client side's that provides of third embodiment of the invention corresponding relation figure;
Fig. 5 is the frame diagram that the data roaming server capability that provides of fourth embodiment of the invention is realized;
Fig. 6 is the structure chart of the implement device of the data roaming that provides of fifth embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
The network flow that passes through that the embodiment of the invention relates between client and the data roaming server connects the realization data communication, described client is not limited to one and be installed in the different device ends, described Data Communication Realization mode comprises that client uploads user data and data roaming server to the data roaming server and roam data to other client simultaneous user, before carrying out described data communication, need to carry out the user and authenticate, have only the user by checking just can be synchronized to the user who preserves on the data roaming server and roam data.Enumerate a simple case, usually QQ user is after computer terminal lands client, client background can ask this user's chat record is uploaded in the QQ data roaming server, after this user of QQ data roaming server authentication is legal, preserve described chat record, this user lands QQ by the client of other computers, if this user need check the chat record that is retained in previous computer and just can request msg roam, after if the described user's data roaming of QQ data roaming server authentication request is legal, understand this user's who to store on the server chat record data sync in described client, so just realized the isolation of chat record data, other users can't obtain this user's chat record.
Embodiment one:
Fig. 2 shows the flow process of the implementation method of the data roaming that first embodiment of the invention provides, a kind of implementation method of data roaming, and details are as follows:
In step S101, client is obtained and the unique corresponding data roaming voucher of user login information.
In embodiments of the present invention, described data roaming voucher (ticket) is that the data roaming server can be identified and can confirm, when specific implementation, user's logon information of described data roaming voucher energy unique identification client gets final product, especially, described user's logon information all is unique identification user's number of the account usually, accordingly, the data roaming voucher can be a string sequence code that comprises this number of the account information, and whether the data roaming server can be identified current data roaming request according to sequence code legal.
In step S102, client sends the data roaming request that has the data roaming voucher to the data roaming server.
In embodiments of the present invention, the client storage that is installed on device end has the communication interface of data roaming server, and the connection network user by device end can directly send to the data roaming server with the data roaming request.Described device end is not limited to computer.
In step S103, the data roaming server verifies according to the data roaming voucher that comprises in the data roaming request that receives whether described data roaming request is legal.
In the present embodiment, can this step have determined the user to roam between the data to isolate, because preserve the data roaming voucher in the server when user will roam data upload to the data roaming server by client, the data roaming voucher that existing data roaming server only needs this data roaming voucher and data roaming request are comprised contrasts can judge whether this request is legal.
In step S104, if described data roaming request is legal, then roam transfer of data between described client and the data roaming server.The data roaming transmission here comprises uploading of data and synchronous.
In step S105, if described data roaming request is illegal, then the data roaming server does not respond or provides the illegal information of data roaming request to client.
Embodiment two:
Fig. 3 shows the sequential interaction figure between the communication entity of the data roaming model that second embodiment of the invention provides, this sequential interaction figure known and described each flow process that realizes data roaming, client obtained with the implementation of the unique corresponding data roaming voucher of user login information further preferably to limit on the basis of Fig. 2.The described data roaming implementation method of present embodiment comprises the steps:
In step S201, client login account management server also sends the roaming certificate application comprise user login information to the number of the account management server.
In the present embodiment, can obtain the data roaming voucher in order to realize client, the embodiment of the invention has increased the number of the account management server, described number of the account management server is responsible for verifying user's legitimacy, described client is known the communication interface of knowing the number of the account management server, when specific implementation, the user is by clicking the login button on the client, and client is connected to the number of the account management server according to described communication interface automatically.
In step S202, the number of the account management server is according to the legitimacy of the roaming certificate application checking login user that receives.
When the specific implementation present embodiment, the number of the account management server can verify whether login user is legal by the password that is associated with user's login account that the user arranges, and is validated user if password is correctly then judged the user of current login, otherwise is the disabled user.If when detecting illegal login user, the number of the account management server does not respond or provides disabled user's information.
In step S203, the qualified back of user's login authentication number of the account management server is to the described roaming certificate application of data roaming server forwards.
In embodiments of the present invention, realizing difficulty and development cost in order to reduce, is mutual trust between described number of the account management server and the data roaming server, and the data roaming server need not to verify whether the roaming certificate application that the number of the account management service forwards is legal,
In step S204, the data roaming server generates the data roaming voucher of unique correspondence according to the user login information that comprises in the roaming certificate application that receives.
In embodiments of the present invention, the data roaming server is packaged into data roaming voucher (ticket) with it after the basis of the user login information that receives increases authorization information, and described data roaming voucher is unique corresponding with user login information.
In step S205, described data roaming voucher is transmitted to client by the number of the account management server.
In embodiments of the present invention, owing to be mutual trust between number of the account management server and the data roaming server, whether the number of the account management server also need not the data roaming voucher that verification msg roam server biography comes and meets the requirements, and directly is transmitted to client.
In step S206, client sends the data roaming request that has the data roaming voucher to the data roaming server.
In step S207, the data roaming server verifies according to the data roaming voucher that comprises in the data roaming request that receives whether described data roaming request is legal.
In step S208, if the data roaming request is legal, then roam transfer of data between described client and the data roaming server, if described data roaming request is illegal, then the data roaming server does not respond or provides the illegal information of data roaming request to client.The roaming transfer of data equally here comprises uploading of data and synchronous.
Embodiment three:
Fig. 4 shows the data roaming server and client side's that third embodiment of the invention provides corresponding relation, present embodiment is made at the implementation structure of the casual server of data and being further described, and adopts the data roaming server of this structure to guarantee that the user roams extensibility and the versatility of data location.
The data roaming server that present embodiment adopts has distributed a user network file system that is used for the storage user data for each user, isolates mutually between each user network file system, and only returning NFS with two usefulness among the figure is example.
Described user network system class is similar to local file system, and the file in the system leaves root or touching in the file wherein in.At this, each user's NFS is a root, and under this root, corresponding user can create subdirectory or file.In the invention process, use relative path to identify and locate catalogue and file, "/" expression root can be expressed as its path of Hello.jpg file among the figure :/dirl/Hello.jpg.
In embodiments of the present invention, after the request of data roaming server authentication data roaming is legal, client 11 upload the data to the data roaming service wherein, the data roaming server is saved in the described data of uploading in the user network file system 1 automatically, and data exist with catalogue form, can identify and locate corresponding catalogue and user data by relative path; When this user needs synchronously the roaming data, after the data roaming request empirical tests of sending is legal, the data roaming server in can automatic inspection user network file system 1 data and it is synchronized in the client 12.In like manner the working method of user network file system 2 is similar.Roam server has distributed with behind the directory file system for the user, and this file system just belongs to this user, and the user can create directory or file in this file system.User only need upgrades in the mode of file access according to the path and obtains the roaming data, has guaranteed extensibility and the versatility of document alignment.
Embodiment four:
The frame diagram that the data roaming server capability that Fig. 5 shows fourth embodiment of the invention to be provided is realized, the embodiment of the invention is to show the implementation structure block diagram of the data roaming data in server transmission of structure at client with adopting Fig. 4, and it is definite feasible can further specifying embodiment of the present invention with this.
Roaming transfer of data essence between client and the data roaming server will be exactly data in the corresponding user network file system of user login information carry out file operation, comprise file deletion, file appending, written document and read file operation etc.For different operations corresponding implementation method is just arranged.
At first this framework comprise interface layer (AppDataRoamApi), realize operated system logical layer (AppDataRoamImpl, LocaldirMgr and VirtualDirMgr), with protocol layer (TfsApi) and the data roaming server (TFS Server) of data roaming server communication.Wherein interface layer provides the constituent instruments operation-interface, comprises StoreDeleteFile, StoreAppendFile, StoreWriteFile and StoreReadFile, respective file deletion respectively, file appending, written document and read file operation.VirtualDirMgr in the system logic layer is a virtual file system index tree, essential informations such as the size of logo file system directory number and file and timestamp, be divided into VirtualDirMgr (from server) and two parts of VirtualDirMgr (locally), wherein when initialization, VirtualDirMgr (from server) pulls file system index and document time stamp by the ListDirInfo function that calls among the TfsApi from TFS server, make up the virtual file directory structure corresponding with server file directory system, VirtualDirMgr (locally) then is used for loading from this locality that client is installed the file system index of the local cache that preserved this locality when last time, client withdrawed from.Can learn that by contrast VirtualDirMgr (from server) and VirtualDirMgr (locally) local file and server upload the difference part of the user file of storage, thereby can carry out next step concrete file operation.Specific as follows:
When needs in this locality newly-built catalogue, deltree, whether up-to-date deleted file, sign local file be, can realize corresponding operation by entrusting LocaldirMgr.
When needs are read then to realize by the AppDataRoamImpl interface when StoreReadFile function is called in file operation: at first to the VirtualDirMgr querying server whether this file is arranged, whether local this part has been updated to up-to-date, to LocaldirMgr inquiry this locality whether this file is arranged then, if there is this file in this locality and is up-to-date, return the upper strata after then directly reading this file, if local this file that does not exist this file or this locality to preserve is not up-to-date, and when having this file in the server, the DownloadFile function that just calls in the TfsApi protocol layer pulls described latest document from server, after pulling successfully, by VirtualDirMgr transaction file timestamp and up-to-date sign whether, store the file that pulls into this locality with LocalDirMgr again, return the upper strata after reading file content then.
When needs call other function of AppDataRoamApi interface layer and carry out corresponding operating, just respective function and the server that directly forwards among the TfsApi is mutual, after operating successfully, entrust the information of VirtualDirMgr and LocalDirMgr transaction file system respectively, and the updating local file system.
Need to prove that the embodiment of the invention just realizes a kind of framework mode of data roaming server basic function, but the invention is not restricted to this, modification or equivalent variations also drop in the protection range of the present invention on this basis.
Embodiment five:
Fig. 6 shows the structure of the implement device of the data roaming that fifth embodiment of the invention provides, and only shows the part relevant with the embodiment of the invention for convenience of explanation, and is following as follows.
A kind of implement device of data roaming comprises:
The voucher acquiring unit is used for client and obtains and the unique corresponding data roaming voucher of user login information;
The roaming request unit is used for client and sends the data roaming request that has the data roaming voucher to the data roaming server;
The credential verification unit, be used for the data roaming voucher that the data roaming server comprises according to the data roaming request that receives, verify whether described data roaming request is legal, if the data roaming request is legal, then roam transfer of data between described client and the data roaming server.
Be further used as preferred embodiment, described voucher acquiring unit comprises:
The application sending module sends the roaming certificate application that comprises user login information for client login account management server and to the number of the account management server;
The checking forwarding module is used for the number of the account management server according to the legitimacy of the roaming certificate application checking login user that receives, and verifies that qualified back is to the described roaming certificate application of data roaming server forwards;
The voucher generation module, the user login information that the roaming certificate application that receives for data roaming server basis comprises generates the data roaming voucher of unique correspondence, more described data roaming voucher is transmitted to client by the number of the account management server; And
The voucher acquisition module is used for client and receives the data roaming voucher that described number of the account management server is transmitted.
Further, described credential verification unit comprises:
The file allocation module, be used for the data roaming server and distributed a user network file system that is used for the storage user data for each user, user data in the described user network file system exists with catalogue form, identifies and locate corresponding catalogue and user data by relative path.
Further, described file allocation module comprises:
The index construct device, be used for to make up a virtual file index corresponding with its bibliographic structure system and a local file index that is used for loading the local data of preservation recently, call the file operation interface function by both are compared again and finish file operation in this locality.
In embodiments of the present invention, the implement device of data roaming is compared with data roaming implement device in the prior art, by having increased voucher acquiring unit and credential verification unit, has realized that the user roams the isolation of data.In addition, adopted the user network system configuration of catalogue form at the data roaming server, on guaranteed extensibility and the versatility of document alignment,
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the implementation method of a data roaming is characterized in that, described method comprises the steps:
Client is obtained and the unique corresponding data roaming voucher of user login information;
Client sends the data roaming request that has the data roaming voucher to the data roaming server;
The data roaming server verifies according to the data roaming voucher that comprises in the data roaming request that receives whether described data roaming request is legal, if the data roaming request is legal, then roams transfer of data between described client and the data roaming server.
2. the implementation method of a kind of data roaming as claimed in claim 1 is characterized in that, if described data roaming request is illegal, then the data roaming server does not respond or provides the illegal information of data roaming request to client.
3. the implementation method of a kind of data roaming as claimed in claim 1 is characterized in that, described client is obtained and being implemented as follows of the unique corresponding data roaming voucher step of user login information:
Client login account management server also sends the roaming certificate application comprise user login information to the number of the account management server;
The number of the account management server verifies that according to the legitimacy of the roaming certificate application checking login user that receives qualified back is to the described roaming certificate application of data roaming server forwards;
The user login information that comprises in the data roaming server basis roaming certificate application that receives generates the data roaming voucher of unique correspondence, more described data roaming voucher is transmitted to client by the number of the account management server; And
Client receives the data roaming voucher that described number of the account management server is transmitted.
4. the implementation method of a kind of data roaming as claimed in claim 3 is characterized in that, is mutual trust between described number of the account management server and the data roaming server, and both need not the legitimacy of the request of verifying when communication.
5. as the implementation method of described any data roaming of claim 1 to 4, it is characterized in that, roam transfer of data between described client and the data roaming server and comprise: client with user data upload in the data roaming server and the data roaming server corresponding user data that will have be synchronized to client.
6. the implementation method of any data roaming as claimed in claim 5, it is characterized in that, described data roaming server has distributed a user network file system that is used for the storage user data for each user, user data in the described user network file system exists with catalogue form, identifies and locate corresponding catalogue and user data by relative path.
7. the implementation method of any data roaming as claimed in claim 6, it is characterized in that, described user network file system builds virtual file index corresponding with its bibliographic structure system and one be used for loading the local local file index of preserving data recently, call the file operation interface function by both are compared again and finish file operation in this locality.
8. the implementation method of any data roaming as claimed in claim 7 is characterized in that, the performing step of reading file operation in the described file operation is as follows:
Check whether local file and this document that whether exists described need to read is up-to-date;
If there is this file in this locality and is the up-to-date this document that then directly reads;
Otherwise, if there is this file in the described virtual file index, then directly pulls and stab and up-to-date sign this document and update time, if do not have this file in the described virtual file index, then the user network file system provides the information of reading the file operation failure.
9. the implement device of a data roaming is characterized in that, described implement device comprises:
The voucher acquiring unit is used for client and obtains and the unique corresponding data roaming voucher of user login information;
The roaming request unit is used for client and sends the data roaming request that has the data roaming voucher to the data roaming server;
The credential verification unit, be used for the data roaming voucher that the data roaming server comprises according to the data roaming request that receives, verify whether described data roaming request is legal, if the data roaming request is legal, then roam transfer of data between described client and the data roaming server.
10. the implement device of a kind of data roaming as claimed in claim 9, it is characterized in that: described voucher acquiring unit comprises:
The application sending module sends the roaming certificate application that comprises user login information for client login account management server and to the number of the account management server;
The checking forwarding module is used for the number of the account management server according to the legitimacy of the roaming certificate application checking login user that receives, and verifies that qualified back is to the described roaming certificate application of data roaming server forwards;
The voucher generation module, the user login information that the roaming certificate application that receives for data roaming server basis comprises generates the data roaming voucher of unique correspondence, more described data roaming voucher is transmitted to client by the number of the account management server; And
The voucher acquisition module is used for client and receives the data roaming voucher that described number of the account management server is transmitted.
11. the implement device of a kind of data roaming as claimed in claim 9 is characterized in that, described credential verification unit comprises:
The file allocation module, be used for the data roaming server and distributed a user network file system that is used for the storage user data for each user, user data in the described user network file system exists with catalogue form, identifies and locate corresponding catalogue and user data by relative path.
12. the implement device of a kind of data roaming as claimed in claim 11 is characterized in that, described file allocation module comprises:
The index construct device, be used for to make up a virtual file index corresponding with its bibliographic structure system and a local file index that is used for loading the local data of preservation recently, call the file operation interface function by both are compared again and finish file operation in this locality.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100440642A CN103297385A (en) | 2012-02-24 | 2012-02-24 | Method for achieving data roaming |
| US14/241,012 US20140206319A1 (en) | 2012-02-24 | 2013-02-19 | Method and device for achieving data roaming |
| EP13751173.9A EP2819341A4 (en) | 2012-02-24 | 2013-02-19 | Method and device for achieving data roaming |
| PCT/CN2013/071666 WO2013123870A1 (en) | 2012-02-24 | 2013-02-19 | Method and device for achieving data roaming |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100440642A CN103297385A (en) | 2012-02-24 | 2012-02-24 | Method for achieving data roaming |
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| CN103297385A true CN103297385A (en) | 2013-09-11 |
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| US (1) | US20140206319A1 (en) |
| EP (1) | EP2819341A4 (en) |
| CN (1) | CN103297385A (en) |
| WO (1) | WO2013123870A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107786937A (en) * | 2016-08-26 | 2018-03-09 | 展讯通信（上海）有限公司 | Implementation method, mobile terminal and the roam server of mobile terminal localized roaming |
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| US20150120662A1 (en) * | 2013-10-29 | 2015-04-30 | Microsoft Corporation | Synchronizing event history for multiple clients |
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- 2013-02-19 WO PCT/CN2013/071666 patent/WO2013123870A1/en active Application Filing
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| CN107786937B (en) * | 2016-08-26 | 2020-06-12 | 展讯通信（上海）有限公司 | Method for realizing mobile terminal localization roaming, mobile terminal and roaming server |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2819341A4 (en) | 2015-11-25 |
| EP2819341A1 (en) | 2014-12-31 |
| WO2013123870A1 (en) | 2013-08-29 |
| US20140206319A1 (en) | 2014-07-24 |
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